Patent holdings for IPC class G21K 5/10

Total number of patents in this class: 416

10-year publication summary

20
24
23
14
9
11
16
3
11
11
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Varian Semiconductor Equipment Associates, Inc.
1231
23
NuFlare Technology, Inc.
842
17
Axcelis Technologies, Inc.
409
15
ASML Netherlands B.V.
7385
14
Hitachi Zosen Corporation
618
8
ION Beam Applications S.A.
188
8
Hitachi High-Tech Corporation
5310
8
FEI Company
943
7
Accuray Incorporated
377
6
Gatan, Inc.
104
6
Applied Materials, Inc.
18621
5
Best Theratronics Ltd.
55
5
NexGen Semi Holding, Inc.
22
5
Xyleco, Inc.
195
5
The Regents of the University of California
19918
4
Canon Inc.
39888
4
Hitachi High-Tech Science Corporation
290
4
Tsinghua University
5922
4
Hamamatsu Photonics K.K.
4417
4
Airex Co., Ltd.
83
4
Other owners 260